Patent US3404450A successfully refreshed from Google Patents.
US3404450A
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US
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Method of fabricating an integrated circuit structure including unipolar transistor and bipolar transistor portions
Assignee: Westinghouse Electric Corp
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Filing: 1966-01-26
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Granted: 1968-10-08
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Expires: 1986-01-26
Abstract
No abstract record available.
Inventors
- 👤 Edmund A Karcher
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 17:16
CPC Classifications
H; H10; H10D; H10D84/00; H10D84/01; H10D84/0123; H10D84/0126; H10D84/0158; H10D84/40; H10D84/401; Y; Y10; Y10S; Y10S148/00; Y10S148/007; Y10S148/037; Y10S148/051; Y10S148/053; Y10S148/085; Y10S148/098
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1971-10-08 | 1972-04-08 | 1972-10-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1975-10-08 | 1976-04-08 | 1976-10-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1979-10-08 | 1980-04-08 | 1980-10-08 | $7700.00 | Window Closed / Lapsed |